KEAM 2023 Physics and Chemistry Solved Paper
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Question : 69 of 120
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A toroid with 500 turns of wire carries a current of ( 2 π ) Ampere. A metal ring inside the toroid provides the core and has susceptibility of 2 × 10 − 5 . If the magnetization is 5 × 10 − 2 A ∕ m , then radius of the ring is :
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